According to the Recording Industry Association of America (RIAA), only a dozen rap albums have received diamond recognition. In today’s digital age, measuring the importance of record sales in hip-hop is difficult because sometimes sales do not match impact. Plus, legendary albums like MF Doom and Madlib’s hip-hop masterpiece Madvillainy didn’t even earn gold status. Here are the 25 highest-selling hip-hop albums of all time. These numbers are calculated by the RIAA for the U.S., and not on a worldwide scale.—Antonio CooperSee the 25 Best-Selling Hip-Hop Albums of All TimeThis editorial is presented by McDonald's.